PHYS 111 Study Guide - Final Guide: Planck Units, Supergravity, Quantum Chromodynamics
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Lecture 5 focus: in class we discussed three ways of understanding the relative nature of simultaneity. Choose the one way you like best and explain what is meant by relativity of simultaneity: what is a light clock, a way of showing a basic feature of special relativity. A longer distance means time slowed down: what happens to a light clock also happens to a rolex watch. When we put the light clock into motion, we can actually see light having to travel a longer path. It travels a longer path and takes a longer time. A: they both believe that the other"s clock is moving slower: explain how it is possible to understand the answer to question #1. A: two twins: one stays on earth and one travels fast (close to the speed of light). When traveling twin returns, the twin that stayed on earth is older than the traveling twin.
